145013769 has 6 divisors (see below), whose sum is σ = 209464346. Its totient is φ = 96675840.

The previous prime is 145013747. The next prime is 145013773. The reversal of 145013769 is 967310541.

It can be written as a sum of positive squares in only one way, i.e., 129686544 + 15327225 = 11388^2 + 3915^2 .

It is not a de Polignac number, because 145013769 - 2¹² = 145009673 is a prime.

It is a super-2 number, since 2×145013769² = 42057986399170722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145083769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8056312 + ... + 8056329.

Almost surely, 2^145013769 is an apocalyptic number.

It is an amenable number.

145013769 is a deficient number, since it is larger than the sum of its proper divisors (64450577).

145013769 is a wasteful number, since it uses less digits than its factorization.

145013769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16112647 (or 16112644 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 145013769 is about 12042.1662918264. The cubic root of 145013769 is about 525.3754158382.

The spelling of 145013769 in words is "one hundred forty-five million, thirteen thousand, seven hundred sixty-nine".